Home / 35,913.22-53,870.10-12,539.68

Finding the Fourth Proportional to 35,913.22, 53,870.10 and 12,539.68

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Solution

The fourth proportional to 35,913.22, 53,870.10 and 12,539.68 is: 18,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,913.22 : 53,870.10 = 12,539.68 : x
  2. Step 2: Convert to fraction form
    35,913.22/53,870.10 = 12,539.68/x
  3. Step 3: Cross multiply
    35,913.22x = 53,870.10 × 12,539.68
  4. Step 4: Simplify right side
    35,913.22x = 675,513,815.57
  5. Step 5: Solve for x
    x = 675,513,815.57/35,913.22
  6. Step 6: Final answer
    x = 18,809.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.